Add lua-stdlib-debug 1.0

• While I'm here:
  • Add NO_ARCH
  • Add missing OPTIONS_DEFINE=DOCS
  • Convert to options target helper
  • Remove LICENSE_FILE from PORTDOCS

This is a debug hints management library for Lua 5.1 (including LuaJIT),
5.2 and 5.3.

WWW: https://github.com/lua-stdlib/_debug

PR: 226590
Submitted by: Kan Sasaki <sasaki@fcc.ad.jp>